@misc{_Natural_2015,
 editor={Godzik, Barbara (1953- ). Redaktor},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 howpublished={online},
 year={2015},
 publisher={W. Szafer Institute of Botany, Polish Academy of Sciences},
 language={eng},
 language={pol},
 title={Natural and historical values of the Olkusz Ore-bearing Region},
 title={Przyrodnicza i historyczna wartość Olkuskiego Okręgu Rudnego},
 type={Text},
}